Pajk/apipie-rails — pull request #102 by iNecas (2013-02-21 13:48:14+00:00)
Title: Explicitly say as what action the param group should be used

Influencing action_aware params

```ruby
api :PUT, "/users/admin", "Create an admin"
param_group :user, :as => :create
def create_admin
# ...
end
```